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Conventional exploration is addressing increasingly challenging plays, more complex geological settings, deep targets, stratigraphic traps difficult to detect and increased operational difficulties due to deeper wells, more complex development solutions and stricter environmental constraints. The oil and gas industry is continuously evolving in order to face these new and increasing challenges while attempting, at the same time, to reduce the financial and HSE exposure and assure its profitability. Three main pillars to guarantee sustainable results are, development of new and more sophisticated technologies, improvement of the processes efficiency and, leverage on the lessons learned and experience gained. The collaboration and joint effort of Academia, Service Companies and Operators is fundamental for the development of successful new technologies. Operators point out the main needs and objectives and trigger the collaboration with Academic Institutions and Research Centers of the Service Companies to develop new tools and new technological solutions.
For thin-oil-rim reservoirs, well placement, well type, well path, and the completion methods must be evaluated with close integration of key reservoir and production-engineering considerations. For thin-oil-rim reservoirs, well placement, type and path, and well-completion methods, should be evaluated with close integration of key reservoir- and production-engineering considerations.
Devon exits the asset that served as the company’s cornerstone for almost two decades and is known to the world as the birthplace of the shale revolution. Matrix acidizing is commonly used as a preflush to the hydraulic-fracturing stimulation of shale formations. The process dissolves sediments and mud solids that inhibit the permeability of the rock, enlarging the natural pores of the reservoir and stimulating flow of hydrocarbons.
The XamXung field offshore Sarawak, Malaysia, is a 47-year brownfield with thin remaining oil rims that have made field management challenging. The dynamic oil-rim movement has been a key subsurface uncertainty, particularly with the commencing of a redevelopment project. In this paper, the authors describe a project to design, field trial, and qualify an alternative solution for real-time monitoring of the oil rim in carbonate reservoirs that overcomes these disadvantages.
This comprehensive course covers the full spectrum of well treatment and stimulation options for carbonate and sandstone reservoirs. It begins with a review of the various mechanisms that can damage a formation and ways to avoid them. Next, the discussion turns to acid systems for carbonate and sandstone formations, treatment design the selection of additives, and the use of coiled tubing in extended reach and multilateral wells. The week will end with an introduction to new technologies for carbonate acidizing. Case histories illustrate some of the treatment options.
This course provides an introduction to the terminology, design concepts and status of unconventional reservoir development. The primary focus is on shale development but with coverage of the few select key elements of shale that are similar to coalbed methane, tight oil and gas, and even conventional reservoirs. Reviewing these similarities is useful in illustrating the concepts and in understanding the reliability of techniques that are new to shale but that have been tested for decades in other types of oil and gas resources. Gain insights on how gas volumes and gas production rates are determined and factors controlling the value of unconventional gas prospects. This course includes an understanding of the different drilling and completion options and discussions on the current environmental challenges and apparent solutions.
Reservoir Characterization serves multiple disciplines. The prediction of Pore Pressure, Fracture Gradients, Reservoir Stresses, Wellbore Stability and Lithology Columns provides the drilling engineers with information needed to deliver a problem free wellbore. On the other hand, the evaluation of reservoir properties of porosity, pore structure, permeability and fluids' saturation provides the reservoir engineers with the information needed to build the dynamic model of a reservoir. The evaluation of the reservoir parameters behind casing such as fluids saturation provides both the production engineers and the petrophysicists with the tools required to optimize reservoir deliverability. This course will combine all these information in a simplified way to integrate all attendees from the different disciplines for optimum reservoir management.
This three-day course presents the basics of petroleum geology with an emphasis on unconventional oil and natural gas reservoirs of clastic and carbonate origin. Lectures are supplemented with case examples from classic resource plays in western Canada. Topics include the fundamental principles of sedimentary geology as applied to hydrocarbon exploration and reservoir development, the stratigraphy of Western Canada, the origin and heterogeneity of conglomerate, sandstone, siltstone and carbonate reservoirs and a review of the unique properties of shale as source rocks and hydrocarbon reservoirs. Other topics include clastic and carbonate environments of deposition, reservoir quality and architecture and the lateral variability and heterogeneity of clastic and carbonate reservoirs as applied to the predictability of outcomes in horizontal drilling. Included are printed course notes and a half-day session at the Alberta Energy Regulator (AER) Core Research Centre in Calgary to examine first- hand the rock properties of clastic and carbonate conventional and unconventional (i.e.
This course covers the essential concepts and techniques applied in evaluating hydrocarbon storage and productivity potential in shale and tight reservoirs, with an emphasis on practical methods uncommon to conventional reservoir analysis. The limitations and advantages of the different techniques will be illustrated through examples compiled from actual evaluation studies in several different basins. The pace and content of the course is intended for those looking to gain a solid understanding of unconventional reservoir concepts who are already very familiar with reservoir evaluation techniques for conventional oil & gas reservoirs. Success in developing oil from very low permeability reservoirs in North America has sparked global interest in how these plays are being identified, evaluated and developed. This course covers the unique approaches, as compared to conventional oil reservoirs, that are being applied to determine the best unconventional reservoir interval(s) to complete and to calculate the anticipated recovery volumes.
Africa (Sub-Sahara) An initial drillstem test on the Mzia-2 well in Block 1 flowed at a maximum rate of 57 million ft3 of gas per day, increasing the estimated recoverable resources from the field to 4.5 trillion ft3. This is the first test carried out on a Cretaceous discovery in deepwater offshore Tanzania. BG (60%) is the operator in partnership with Ophir Energy (40%). Asia Pacific Production has begun from the Wei Zhou 6-12 oil field in the Beibu Gulf basin in the north part of the South China Sea. The project has 10 producing wells drilled at an average water depth of 29.2 m. CNOOC has a 51% operating interest in partnership with Roc Oil, Horizon Oil, and Oil Australia. Salamander Energy signed production-sharing contracts for the Northeast Bangkanai and West Bangkanai license areas, onshore central Kalimantan in Indonesia. Each area covers approximately 2,214 sq miles.